Modrzejewska-Świgulska, Monika, and Aleksandra Chmielińska. “Obstacles at the Work of Teachers and Innovators Based on the Results of Educational Research”. Elementary Education in Theory and Practice 13, no. 2(48) (July 25, 2018): 13-26. Accessed November 19, 2025. https://czasopisma.ignatianum.edu.pl/eetp/article/view/1047.